JPS5568795A - Speaker - Google Patents

Speaker

Info

Publication number
JPS5568795A
JPS5568795A JP14314578A JP14314578A JPS5568795A JP S5568795 A JPS5568795 A JP S5568795A JP 14314578 A JP14314578 A JP 14314578A JP 14314578 A JP14314578 A JP 14314578A JP S5568795 A JPS5568795 A JP S5568795A
Authority
JP
Japan
Prior art keywords
diaphragm
edge
bobbin
coil
driven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14314578A
Other languages
Japanese (ja)
Other versions
JPS6133434B2 (en
Inventor
Keijiro Maeda
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP14314578A priority Critical patent/JPS6133434B2/ja
Publication of JPS5568795A publication Critical patent/JPS5568795A/en
Publication of JPS6133434B2 publication Critical patent/JPS6133434B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Abstract

PURPOSE: To reduce occurrence of the hetero-sound in terms of the acoustic sense by driving the diaphragm of the heneycomb-structure from the back side and at the same time driving directly the front skin layer of the diaphragm.
CONSTITUTION: Honeycomb-structure flat plate type diaphragm 11 featuring virtually a square shape is attached to the front side of frame 13 via edge 12. While, for example, four units of magnetic circuit 18 consisting of plate 14, yoke 15, permanent magnet 16 and center pole 17 are provided in the fixed arrangement to the back side of frame 13. At the same time, the rear edge of coil bobbin 20 with voice coil 19 wound at the outer circumference is inserted into circular gap 21 between plate 14 and pole 17, and the front edge part of bobbin 20 is connected to diaphragm 11. Thus four points of diaphragm 11 are driven simultaneously via each bobbin 20 and by the driving force of each coil 19 which is driven simultaneously at circuit 18.
COPYRIGHT: (C)1980,JPO&Japio
JP14314578A 1978-11-20 1978-11-20 Expired JPS6133434B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14314578A JPS6133434B2 (en) 1978-11-20 1978-11-20

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP14314578A JPS6133434B2 (en) 1978-11-20 1978-11-20
US06/093,853 US4322583A (en) 1978-11-20 1979-11-13 Voice coil bobbin connection to loudspeaker diaphragm of honeycomb core sandwiched by sheets
CA000340059A CA1137618A (en) 1978-11-20 1979-11-16 Voice coil bobbin connection to loudspeaker diaphragm of honeycomb core sandwiched by sheets
GB7939780A GB2037123B (en) 1978-11-20 1979-11-16 Flat plate loudspeakers
DE19792946618 DE2946618C2 (en) 1978-11-20 1979-11-19
NL7908430A NL7908430A (en) 1978-11-20 1979-11-19 Speaker.
FR7928598A FR2441981B1 (en) 1978-11-20 1979-11-20

Publications (2)

Publication Number Publication Date
JPS5568795A true JPS5568795A (en) 1980-05-23
JPS6133434B2 JPS6133434B2 (en) 1986-08-01

Family

ID=15331972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14314578A Expired JPS6133434B2 (en) 1978-11-20 1978-11-20

Country Status (7)

Country Link
US (1) US4322583A (en)
JP (1) JPS6133434B2 (en)
CA (1) CA1137618A (en)
DE (1) DE2946618C2 (en)
FR (1) FR2441981B1 (en)
GB (1) GB2037123B (en)
NL (1) NL7908430A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55165595U (en) * 1979-05-15 1980-11-28
JPS57163897U (en) * 1981-04-09 1982-10-15
JPS57166491U (en) * 1981-04-11 1982-10-20

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036876C2 (en) * 1979-10-02 1983-09-08 Victor Company Of Japan, Ltd., Yokohama, Kanagawa, Jp
US4472604A (en) * 1980-03-08 1984-09-18 Nippon Gakki Seizo Kabushiki Kaisha Planar type electro-acoustic transducer and process for manufacturing same
DE3123098C2 (en) * 1981-06-11 1983-06-01 Martin 4600 Dortmund De Stute
US4479035A (en) * 1983-05-23 1984-10-23 Philippbar Jay E Ceramic voice coil assembly
US4817165A (en) * 1987-01-27 1989-03-28 Amalaha Leonard D Acoustic speaker device with a diaphragm having a spider web type core
CA2084787C (en) * 1990-06-08 2003-05-27 Simon Paul Carrington Loudspeakers
GB2246684A (en) * 1990-08-04 1992-02-05 Secr Defence Panel form loudspeaker
US6247551B1 (en) 1990-08-04 2001-06-19 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Panel-form loudspeaker
US5231672A (en) * 1991-07-10 1993-07-27 Tsao Ye Ming Plane-surfaced waved out-diffusion triangular beam-typed resonant board
CH684670A5 (en) * 1992-10-20 1994-11-15 Gyoergy Csikos A method for converting the mechanical vibration of a driver into an acoustic signal transducer and to its execution.
US6282298B1 (en) 1996-09-03 2001-08-28 New Transducers Limited Acoustic device
US6003766A (en) 1995-09-02 1999-12-21 New Transducers Limited Vending machine
GB2320393A (en) 1996-12-11 1998-06-17 Secr Defence Panel form loudspeaker
GB9704486D0 (en) * 1997-03-04 1997-04-23 New Transducers Ltd Acoustic devices etc
GB9714050D0 (en) * 1997-07-03 1997-09-10 New Transducers Ltd Panel-form loudspeakers
DE19757098C2 (en) * 1997-12-20 2003-01-09 Harman Audio Electronic Sys Suspension for sound reproduction arrangements based on the bending wave principle
DE19757099A1 (en) * 1997-12-20 1999-06-24 Nokia Deutschland Gmbh Contacting for a sound reproduction arrangement based on the bending wave principle
DE19757097B4 (en) * 1997-12-20 2004-04-15 Harman Audio Electronic Systems Gmbh Sound reproduction device
JP4317957B2 (en) * 1998-01-16 2009-08-19 ソニー株式会社 Speaker device and electronic device incorporating speaker device
DE19821861A1 (en) * 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Device for dynamically exciting flat panel loudspeaker
GB2360665B (en) * 1998-06-22 2003-01-15 Slab Technology Ltd Loudspeakers
GB2351868B (en) 1998-06-22 2001-08-29 Slab Technology Ltd Loudspeakers
JP3753150B1 (en) * 2004-09-09 2006-03-08 株式会社村田製作所 Speaker
EP1988740A1 (en) * 2007-05-03 2008-11-05 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Sound generator
JP2010263512A (en) * 2009-05-11 2010-11-18 Sony Corp Speaker device
EP2387256A1 (en) * 2010-05-14 2011-11-16 DR. KURT MÜLLER GmbH & Co. KG Method for manufacturing a loudspeaker membrane
US8855338B2 (en) * 2011-08-12 2014-10-07 Richard H. Lyon Transducers employing bowed lamina
KR101626274B1 (en) * 2013-09-09 2016-05-31 신이치로 나카이시 Speaker for supporting hearing-impaired people
US9154862B2 (en) 2013-06-27 2015-10-06 The Boeing Company Flat panel loudspeaker system
US9014413B2 (en) 2013-08-21 2015-04-21 The Boeing Company Dual coil loudspeaker system
DE202015101129U1 (en) * 2015-03-06 2016-06-08 LEGIS GbR (vertretungsberechtigter Gesellschafter: Thomas C.O. Schmidt, 10707 Berlin) Flat membrane with resin filled holes, planar speakers with flat membrane and acoustic unit with such a planar loudspeaker
US9877112B2 (en) * 2016-03-29 2018-01-23 Dell Products L.P. Piezoelectric force actuator audio system
US9942662B2 (en) * 2016-06-14 2018-04-10 Bose Corporation Electro-acoustic driver having compliant diaphragm with stiffening element

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR572766A (en) * 1923-01-29 1924-06-12 electromagnetic speaker
NL23994C (en) * 1926-10-01
GB320654A (en) * 1928-04-21 1929-10-21 George Rex Searle Improvements in loud speakers for wireless apparatus or the like
GB323539A (en) * 1928-10-04 1930-01-06 George Rex Searle Improvements in or relating to diaphragms for loud-speakers and like instruments
GB1526201A (en) * 1975-09-05 1978-09-27 Strathearn Audio Ltd Loudspeaker diaphragm
JPS63999B2 (en) * 1976-12-23 1988-01-09 Sony Corp
US4232204A (en) * 1978-06-22 1980-11-04 Comercial E Industrial Sound-Tronic Ltd. High fidelity loudspeaker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55165595U (en) * 1979-05-15 1980-11-28
JPH0112479Y2 (en) * 1979-05-15 1989-04-11
JPS57163897U (en) * 1981-04-09 1982-10-15
JPS57166491U (en) * 1981-04-11 1982-10-20

Also Published As

Publication number Publication date
CA1137618A1 (en)
DE2946618C2 (en) 1989-08-31
FR2441981B1 (en) 1985-04-26
GB2037123B (en) 1983-04-13
GB2037123A (en) 1980-07-02
NL7908430A (en) 1980-05-22
JPS6133434B2 (en) 1986-08-01
CA1137618A (en) 1982-12-14
US4322583A (en) 1982-03-30
FR2441981A1 (en) 1980-06-13
DE2946618A1 (en) 1980-05-29

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